How to use

getActionListeners

method

in

javax.swing.JCheckBoxMenuItem

private ViewMenuController getViewMenuController() {
  Map<String, JCheckBoxMenuItem> viewMenuItems
    = ((GCViewerGuiMenuBar) this.gcViewerGui.getJMenuBar()).getViewMenuItems();
  assert viewMenuItems.size() > 0 : "viewMenuItems is not initialised!!";
  JCheckBoxMenuItem menuItem = viewMenuItems.values().iterator().next();
  for (ActionListener actionListener : menuItem.getActionListeners()) {
    if (actionListener instanceof ViewMenuController) {
      return (ViewMenuController) actionListener;
    }
  }
  
  throw new IllegalStateException("no ActionListener of type 'ViewMenuController' found");
}

Checkbox checkbox = new Checkbox();
final ActionListener[] actionListeners = entry.getActionListeners();